IAG Stage 1 Cylinder Head Package for 18-20 STI N25 Casting (Cams / Lifters Sold Separately). 2020-subaru-wrx sti-sport The ported head package starts

The ported head package starts with brand new 2006-14 WRX D25 OEM head castings directly from Subaru of America

Ferrea Drag Springs

IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal and (2) OEM Oil Plugs

5 Closed Deck Short Block that utilizes a brand new EJ25 Subaru case that is converted to closed deck and is bored and honed to 99

IAG Stage 1 Cylinder Head Package for 18-20 STI N25 Casting (Cams / Lifters Sold Separately). 2020-subaru-wrx sti-sport The ported head package startsIAG Stage 1 Cylinder Head Package: IAG's Stage 1 cylinder heads are intended for those looking for a cost effective OEM+ replacement. Each package starts with brand new WRX STI N25 OEM head castings, directly from Subaru of America. The bare castings are visually inspected and then fixtured into our in house Centroid 5 axis CNC Machine. This is one of the most advanced pieces of precision engine machining equipment in the world. In the Centroid, the